MathML generated by MathToWeb
A MathML example displaying an indefinite double integral.

${\displaystyle \int \int }f(x,y)dxdy$ \iint f(x,y) \;\, dx \, dy

<math xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
	<mstyle displaystyle="true">
		<mrow>
			<mo>&int;</mo>
			<mo>&int;</mo>
		</mrow>
	</mstyle>
	<mi>f</mi>
	<mrow>
		<mo maxsize="1.00em">(</mo>
		<mi>x</mi>
		<mo>,</mo>
		<mi>y</mi>
		<mo maxsize="1.00em">)</mo>
	</mrow>
	<mspace width="0.278em" />
	<mspace width="0.167em" />
	<mo>&dd;</mo>
	<mi>x</mi>
	<mspace width="0.167em" />
	<mo>&dd;</mo>
	<mi>y</mi>
</mrow>
</math>